Filters cover more laser wavelengths: News from Semrock

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Semrock has released ranges of near-ultraviolet Raman edge filters and near-infra-red deep notch filters, each driven by customer demand. RazorEdge Raman filters, now available for 355nm (tripled Nd:YAG laser) and 363.8nm (argon-ion laser), add to the popular line of Raman edge filters that span the range of laser wavelengths from 325 to 1064nm. These high-performance steep edge-filters block the laser line with an optical density above 6 while transmitting wavelengths only 1% longer than the laser line.

These patent-pending hard-coated thin-film filters have proven reliability, ease of handling, and offer the steepest edges available.

Semrock has also added StopLine deep notch filters for 808 and 830nm diode lasers, in response to strong customer demand, further augmenting the line of single and triple-notch filters.

StopLine filters are the highest-performance optical thin-film notch filters available, blocking the laser line with an OD above 6 while providing 90% transmission outside the notch.

Semrock StopLine series of notch filters rival the performance of holographic notch filters but with a less expensive, more convenient, thin-film filter format.

Unlike holographic filters, StopLine thin-film notch filters reject light by reflecting it, thus simplifying stray-light management, all while retaining the proven reliability common to all Semrockhard-coated filters.

The versatile StopLine filters have applications in laser-based fluorescence instruments, biomedical laser systems as well as multiband Raman systems, and are complemented by the RazorEdge filters, which are highly optimised for stokes Raman spectroscopy.

Both filter series are stocked as catalogue items.

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News Release from: Semrock Edited by the Electronicstalk Editorial Team on 23 April 2004

Filters cover more laser wavelengths

Semrock has released ranges of near-ultraviolet Raman edge filters and near-infra-red deep notch filters, each driven by customer demand.

Note: Readers of the Editor’s free email newsletter will have read this news when it was announced. . It’s free!

News Release from: Semrock
Edited by the Electronicstalk Editorial Team on 23 April 2004